for-each loop in node set variable gives error

Hello List,
          My stylesheet contains following
declarations

declaration 1:
<xsl:variable name="employeeList">
        <xsl:for-each select="//employee/*[name()!='max']">
                <xsl:if test="count(key('employee', @id))=0">
                        <xsl:copy>
                                <xsl:copy-of
select="property[(_at_)name='cast']/@val"/>
                                <xsl:copy-of select="@name"/>
                                <xsl:copy-of 
select="property[(_at_)name='language']"/>
                        </xsl:copy>
                </xsl:if>
        </xsl:for-each>
</xsl:variable>

declaration 2:
<xsl:variable name="generatedEmployees">
        <xsl:for-each select="$employeeList/*">
                <xsl:sort select="@val"/>
                <xsl:copy-of select="."/>
        </xsl:for-each>
</xsl:variable>

for-each loop for $employeeList/* in declaration 2
gives error. I don't understand why it gives error.
Any clue?

regards,
Ranjan


                
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